Schneider Electric 174 CEV

Configuring the Bridge

3.2Overview:SoftwareConfiguration

Hereisan overviewof the tasks forconfiguring the bridge.The referencesareto

the sectionsof thisguidebookthatshowthe detailed installation steps.

3.2.1Setting theEthernetConfiguration

Configurethe bridge’sIPaddressand otherEthernetparametersto allowyour

hostapplication torecognizethe bridge.

Configuration WithaBOOTPServer(Section 3.3)

If aBOOTPserverexists,configurethe servertorecognizethe bridge.When the

bridge isinitiallypowered up,itwillattempt for30 secondstoconnect to aBOOTP

server. If the serverisfound, the bridge will automatically configureforthe

Ethernetconnection.Notethatyou will still havetosetup the mappingsbetween

Ethernetand ModbusPlusdevices,oryou can create a host fileforcentralized

mapping whichyou can download.

Configuration WiththeCFGUTILUtility(Section3.4)

If aBOOTPserverisnotavailable,you can usethe internalCFGUTIL programto

configurethebridge.Connectakeyboard and VGAmonitortothe bridge,start the

utility,anduseit tosetup the bridge’sIPand gatewayaddresses,and subnetwork

mask.

3.2.2Setting theModbusPlus and TCP/IPAddress Mapping

Setup yourbridge’smappingtablestocontrolthe flowof trafficthrough the bridge.

Yourmappingsdefinethe routing destinationsformessagesreceived bythe

bridge on one networkand passed through it to destinationson the othernetwork.

Setting theMapping:TCP/IPtoModbusPlus(Sections 3.5 and 3.6)

Messagesreceived bythe bridge overTCP/IPcontainaDestination Index

address byteinthe range 1 ... 249 decimal.Thisbytecorrespondstothe

dest_idx fieldinModbusApplication Protocolcommandsissued inModicon

panelsoftwaresuchasConceptand Modsoft. The bridge mapsthisbyteto oneof

249 possibleModbusPlusnode destinations.Youdefine the ModbusPlusnode

address to be associated with eachDestination Indexbytevalue.

Setting theMapping:ModbusPlusto TCP/IP(Sections 3.7 and 3.8)

Messagesreceived bythe bridge overModbusPlus containarouting byteinthe

range 1 ... 255 decimal(the dest_idx field).The bridge mapsthisbyteto one of

255 IPdestinations.Youdefine the IPaddress to be associated with each

ModbusPlusrouting bytevalue.